Home / 2,328.85-3,213.61-1,280.95

Finding the Fourth Proportional to 2,328.85, 3,213.61 and 1,280.95

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Solution

The fourth proportional to 2,328.85, 3,213.61 and 1,280.95 is: 1,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.85 : 3,213.61 = 1,280.95 : x
  2. Step 2: Convert to fraction form
    2,328.85/3,213.61 = 1,280.95/x
  3. Step 3: Cross multiply
    2,328.85x = 3,213.61 × 1,280.95
  4. Step 4: Simplify right side
    2,328.85x = 4,116,473.73
  5. Step 5: Solve for x
    x = 4,116,473.73/2,328.85
  6. Step 6: Final answer
    x = 1,767.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.